About Pnina Bat Zvi Pnina Bat Zvi is a host of a morning radio program and a journalist in Tel Aviv. Pnina was also a documentarian for radio and television and has written one previous adult book. A mother of twin sons herself, she is the daughter of Rachel. Books by Pnina Bat Zvi The Promise by (author) Pnina Bat Zvi & Margie Wolfe illustrated by Isabelle Cardinal